Ironing machine



ma. HUNT IRoNING NACHI Filed'July '7' 1921*' 3 sheets-Sheet 1 nec. 23,1924.

T. E. HUNT IRONING MACHINE Filed July 7, 1921 s sneetsfsne'et 2 PatentedDec. 23, 1924.

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THOMAS E. HUNT, OF CHICAGO HEIGHTS, ILLINOIS, ASSIGNOR TO QUAKER'MANUFAC- TUBING COMPANY, OF CHICAGO,

ILLINOIS, A CORPORATION OF ILLINOIS.

IRONING MACHINE.

Application inea July 7,

lTo all whom t may concer/m Be it known that I, THOMAS E. HUNT, a.citizen of the United States, and aI resident of Chicago Heights, inthe county of Cook and State of Illinois, have invented certain new anduseful Improvements in Ironing Machines,of which the following is afull, clear, and exact specification.

My invention is concerned with ironing machines, and is designed toproduce a device of the class described, which shall be extremely.simple in construction, withal effective in its operation, and whichcannot readily get out of order. To these ends, it consists of certainnovel features and combinations of elements, all as will be fullydescribed in the specification and particularly pointed out in theclaims.

It is Jfurther concerned with ironing machines driven by a motor and soconstructed that it is impossible to allow the cloth covered roll tostop its rotation while it is in contact with the heated shoe, whichwould burn the cloth o n the roll if it were at rest. To this end Iplace in the circuit of the motor that rotates the roll a switch lwhichcannot be opened while the roll is in contact with the shoe, and whichis automatically closed when the roll and. shoe are moved into saidcontact.

My invention is further concerned with a novel automaticlatch`mecha`nism for securing the shoe and holding it when it is movedaway from the roll.-

My invention is finally `concerned with a novel adjustment of theconcave shoe relative to the roll so that they can be made to registerexactly upon assembly of the parts,

` even if there should be some inaccuracy in their construction.

j To illustrate my invention,'-I annex hereto three sheets of drawingsin which the same reference charactersy are used to designate identicalparts in all the figures, of which- Fig. 1 is a perspective view of anironing machine embodying my invention;

Fig. 2 is a central transverse vertical section upon a larger scale;

Fig. 3 is a top plan view of one edge of thel feed table showing themotor switch and its co-operating safety lever;

Fi 4 is an end elevation of the roll showing its adjustment;

Fig. 5 is a section on the line 5-5 of Fig. 2 showing the adjustment forthe shoe;

1921. Serial No. 482,921.

Fig.6 is a view ofthe various elements shown in Fig. 5 disassembled moreclearly to show their construction;

Fig. 7 is a front elevation of the same elements assembled;

Fig. 8 is an end elevation of the machine, but with the shoe droppedaway from the roll, and a portion of the framework broken away and insection; and o Fig. 9 is a top plan view of one corner of the ironingboard showing the switch.

In carrying out my invention in its preferred form, I employ twosymmetrical end frame pieces or castings 10, which are firmly securedtogether by the four rods or tubes 11 in a customary manner. Journaledinsuitable boxes 12, one of which is seen in Fig.J 4, are the bearingmetallic roller 14, which as wound thereon one or more layers of fabric15 which in operation is in contact with the concavel surface of themetallic platel 16 constituting the engaging surface 0:1: the shoe. Inorderv to adjust the position of the roll 14 to and from the shoe, Imount the boxes 12 in the bearing slots 17 formed inthe goose-neck topof the frame pieces 10 and provide the lpintles 13 for thel which issuspended from the base plate22 which is s'upported'by a plurality ot'hooks 23 from the upper pair 'ot' rods and sleeves 11, as clearly shownlin Figs. 1 and 2. The armature shaft of the .fmotor has secured on itsouter end the belt pulley 24 which is connected by the belt 25 with thebelt wheel 26 secured on the outer end of the worm shaft 27 journaled ina secured to. the adj acent'frame piece 10 and having secured thereonthe worm 29 which meshes with the worm gear wheel 30 journaled on thebearing stud 31 projecting outward from associated end piece 10. Theworm wheel 30 has `secured thereto, or formed integrally therewith, thesprocket pinion 32 which drives the sprocket wheel 33 secured on theadjacent bearing pintle 13 of the roll 14 through the me ium of thesprocket chain 34. l

The shoe plate 16 is secured upon the edge portions of thepair ofsupporting levers 35,

lsaid portions having a shape corresponding suitable bearing 28 totheinternal cross section of the shoe plate, which levers are journaled onthe inside of the frame pieces 10 by Ithe adjustable con-y nections bestshown in Figs. 2, 5, 6. and 7, where it will be seen that each of theframe pieces has projecting inwardly therefrom l the bearing pintle 36which extends through an aperture 37 in the lever 35, which aperture isconsiderably larger than the pintle 36 so that the position of the lever35 may be adjusted relative to the pintle 36, which forms the actualbearing for the lever through the adjusting piece 37a which is of thelever 35 can be adj usted longitudinally relative to the bearing pintle36,l so as'to bring the shoe 16 into exact register with the roll 14,even if the parts should not be constructed so as to lit with extremeaccuracy.

of which has secured therein the bolt 45 The lower end of each of thelevers 35 is provided with the a rture 43 in which is hooked one end othe strong helically coiled contractile spring 44, the otherend whichextends through an aperture in the inwardly .projecting lug 46 formed onthe frame casting 10, and the spring is placed under the desired tensiontocause the shoe to press against the roll wwith the desired force byturning the wing nut 47 on the bolt 45. J y

v ,The upper ends of the levers 35 are shaped so as to have the woodenfeedV table48 secured thereon in the properpositlon so that `work can bepassed acrossA the feed table and j caught between the shoe and theroll'to start the operation of ironing when theslioe is swung back alittlefrom" the roll. 'l To control the position-ofthe shoe relative tothe roll and at thesame time leave the operators hands .entirely` free,I provide the treadle bar 49, extending the `lengt-h of the machine, andsecured upon the outer ends of the pair-of` treadle levers 50, which aresecured upon the rock shaft or sleeve 5l which is journaled on or in'theprojections 52 of the end pieces 10.' The treadle is connected to thelevers 35 by means of a. pair of links 53, which links are jointed .at54,` so that when it is desired to drop the shoe entirely away from theroll, asindicated'in full lines in Fi 8 and in dotted lines in Fig. 2,this cantlie effected by screwing the mariees wing nuts 47 entirely 0Hof the bolts 45, when the leversl 35 will be relieved from the springtension tending to hold the shoe up against the roll. -When this isdone, the, treadle drops to the dotted line position shown, but if thelinks 53 were not jointed at 54, so that they could assume the positionshown in full lines in Fig. 8 and in dotted lines in Fig. 2, the levers35 could not swing away from the roll to the extent shown, because thetreadle 49 would engage the floor and stop its movement. When, however,the joint 54 breaks, as shown in Fig. 2, this diliiculty is obviated.

To lock the shoe automatically a short distance away from the roll, lprovide the locking lever 55, which has its upper end ex*- tending up byone end of the -feed table 48 and is fulcrumed to the adjacent treadlelever at 59. This leve'r is provided with a recess adapted toaccommodate the projection 46 and having the .squareA shoulder 61.adapted to catchthe square lower edge of the projection 46 when thelever is drawn down far enough by the depression of the treadle 49.Automatically to throw the lever 55 over to engage the catch when it isdepressed, I pivot upon it at 62 an overweighted dog 63 which has itsnose 64 always in engagement with the adjacent edge of thejend casting10, as clearly seen in Fig. 1. The overweight of this dog 63 valwaysserves to throw the lever forward to insure its catching, thus obviatingthe necessity of employing a spring such as is or- 100 dinarily used forthis purpose. When lthe shoe is to be returned in Contact with the roll,all .that is necessary is to shove the lever 55 backward enough todisengage the catch, when of course the springs 44 carry 105 the shoeinto engagement with the roll.

l To prevent the possible burning of the cloth 15 on the roll by theheated shoe, if

' the shoe vshould be at rest when the shoe'is in engagement. therewith,I lead the wires N0 64 spplyingthe current for the ln'otor to a switch65 which is preferably set inthe adi jacent end of the table 48, and hasthe short operating lever' 66 projeetingwit'romthe edge of the feedtable 48 into thepath of the up-`7 115 turned end 67 of the safety lever68 which is fulcrumed at 69 to the adjacent lever 35. The downwardlyextending arm 70 of this lever 68. has the set-screw 7 1, seen iny fulllines in Fig 8 and in dotted linesin Fig. 2, 120 threaded therethroughand held -inj thedesircd position of adjustment by the lock mit 71threaded thereon and (to-operating with the end of the lever. The end'Lof'the -set screw 70 is always in contact with the edgen125 portion 72of the adjacent end casting 10,

as seen in Figs. 1 and 8, andthe set-screw' 70 is so adjustedA that whenthe shoe is inv vContact with the roll, the safety lever 68 is forced upinto the position shown in Figs. 1 13@ and 3, where the inner' edge ofthe portion 67 of the lever engages the switch lever 66 and forces it tothe position shown in Fig. 3, where the switch is closed, and the motoris energized and necessarily rotates and drives the machine. As soon asthe shoe is swung far enough away from the roll-so that there is nodanger of burning it it the roll is at rest, the safety lever 68 swingsaway from the switch lever 66, as seen in dotted lines in Fig. 2, andthe operator can then throw the switch lever 66 to stop the motor, whichhowever, will be automatically started again, as soon as the shoe isreleased and the springs 44 are allowed to carry it,

back into engagement with the roll.

The shoe 16 is heated by the customary pipe burner 73, and this burneris enclosed lby a. sheet metal casing 74 secured at its after they areironed is formed by the sheet.

metal trough 79 which is supported beneath the roll and the shoe by thepair of cross pieces 80 which have thefeet 81 extending downwardtherefrom and terminating in the yokes 82 embracing the rods and tubes11 to removably support the trough.

The operation of -my improved ironing machine will be apparent from theforegoing description of its4 construction and intended mode ofoperation.

While I have shown and described my invention as embodied in the formwhich I at present consider best adapted to carry out its purposes, itwill be understood that it is capable of modifications, and I donotdesire to be limited in the interpretation `of the following claimsexcept as may be necessitated by the state of the prior art.

What I claim as new andvdeslre to secure by -Letters Patent of theUnited States is:

1.l In an ironing machine, the combinaton lwith a supporting frame. of apair of i the roll.

2. In an ironing machine, the "combination with a supporting frame, of apair of levers fulcrumed therein, a heated shoe rigidly secured betweenthe levers so asto' move therewith, a feed table secured between the'levers just beyond the shoe, a roll journaled in the frame co-operatingwith the shoe, means for rotating the roll, a spring connected to one ofthe levers to hold the shoe` against the roll, and means to draw theshoe from the roll against the resistance of the spring.

, 3, In an ironing machine, the combination with a supporting frame, ofa heated shoe pivoted therein, a roll journaled in the frameco-operating with the shoe. means for rotating the roll, a pair ofhelically coiled coutractile springs connected to the pivoted shoe atits ends at a distance from its fulcrum and serving to pull the shoetoward the center of the roll, a pair of bolts connected to the otherends of the springs and passing with a4 supporting frame, ot a heatedshoe mounted thereon, a feed table projecting outwardly from the top ofthe shoe, a Sheet metal covering for the shoe, a burner between theheated shoe and the cover, and a heat deflccting plate extending fromthe shoe between the cover and thefeed table.

5. In an ironing machine, the combination.

traetile springs connected to the pivotedI shoe at its ends, a pair ofbolts connected to the other ends of the springs and passing throughapertures in the frame, set nuts on the bolts outside of the frame, atreadle, and jointed links connecting the treadle with the shoe soithatwhen the nuts are removed` the shoe is free to drop'away from therollidespite the Contact of the treadle with the floor. y

6. In an ironing machine, the combination with. a supporting frame, of aheated shoe pivoted thereina roll j ournaled in the frame co-operatingwith the shoe` means for rotating the roll, springs detachably connectedto the shoe and to the trame. a' treadle, and

jointed links connecting the treadleand the p shoe so that when thesprings are detached the shoemay fall away from theroll despite theContact ot the treadle with lthe floor.

7. In an ironing niaehine. theeombi'nation with a supporting trame, otironing-members carried thereby comprisingla heated shoe and an opposedroll mounted so as to be relatively movable to and Jfrom each other,

Y having a limited movement, and connections from the treadle to theironing members whereby the depresslon of the treadle separates themembers, said connections 1ncluding a two-part link jointed so that theironing members may be separated farther than the limited movement ofthe toot treadle will permit by breaking the joint. l

8. In an ironing machine, the combination with a frame, of a rolljournaled therein. a second frame, a heated shoe carried by the secondframe, means for moving one frame to and from the other to causerelative movemen'tof the shoe and roll to bring them into and out ofengagement, a motorthem into and out ot engagement, a motor forlrotating the roll, a manually operable snap switch Jfor the motorcarried by the moving frame, an operating lever for the snap switch, andmeans for swinging the lever.

10. n an ironing machine, the combination with a frame, of a rolljournaled therein, a second frame, a heated shoe carried by the secondframe, means for movlng one frame to and from the other to causerelative movement of the shoe and roll to bring them intoand out ofengagement, a motor for rotating the roll, a manually operable snapswitch for the motor (carried by the lmoving trame, and an operatinglever for the snap switch dropped out of engagement therewith as theframe is moved to separate the roll and shoe, and contacted by thestationaryjframe to close the switch as the trame is moved to bring themtogether.

11. In an ironing machine, the combination wlth a frame, of a rolljournaled therein, a second frame, a heated shoe carried by the secondframe, means for moving one frame to and from the otherl to cause jframe is moved to bring them together, and

isadaae means for adjusting the relative position ot the parts at whichthevcontact occurs.

12. ln an ironing machine, the combina tion with a main frame, of a rolljournaled in said frame,- amotor, gearing from the motor to the roll, aswinging frame pivoted on the main frame, a heated shoe carried by theswinging frame, a switch in the motor circuit, and a bell crank leverpivoted on the swinging frame having one end adapted to vengage andoperate the switch if it is open when the other end engages a stop onYthe main frame.

13. lin an ironing machine, the combination with a main frame, of a rolljournaled in said frame, a motor, gearing from the motor to the roll, aswinging frame pivoted on the main frame, a heated shoe carried by theswinging frame, a switch in the motor circuit, a bell crank leverpivoted on the swinging frame having one end adapted to engage andoperate the switch if it is open when the other end engages a stop onthe main trame, and a set-screw in the last mentioned end of the leveradjustable to determine in what position of the swinging frame theswitch shall be closed.

14. ln an ironing machine, the combination with a frame having a pair'of opposed bearing pintles, of a pair of bearing pieces journaled onthe pintles, a pair of swinging frame levers radially adjustable on thebearing pieces, a heated shoe and a roll carried by the frame levers andthe frame, said shoe and rollbeing relatively movable by swinging theframe levers.

15. ln an ironing machine,' the Combination with a frame having a airof. opposed bearing pintles, of a pair o? bearing pieces journaled onthepintles, a pair of swinging frame levers radially adjustable on thebearing pieces, a heated shoe carried by the frame levers, a rolljournaled in the frame, means for rotating the roll, and means foradjusting the roll in a line substantially at right angles to the radialline of the frame levers.

16. In an ironing machine, the combination of a frame, of a pair otswinging frame levers journaled on the frame, a concave shoe carried bythe frame levers, means for adjusting the bearings of the frame levers,a roll journaled in the frame co-operating with the shoe, and means toradjusting the roll bearings substantially at right angles to theadjustment ot the frame lever bearm s.

n witness whereof, I have hereunto set my hand and afiixed my seal this24th day ot' June, A. D. 1921. y l

THOMASE. HUNT. [n s. Witness:

JOHN HOWARD McELRoY.

